The verdict
Neither runs away with it: each wins something.
| Category | A31 | Q9 |
|---|---|---|
| Design & display | 4.8 | 7.0 |
| Performance & hardware | 2.6 | 3.5 |
| Camera | 3.4 | 3.0 |
| Connectivity | 4.9 | 5.0 |
| Battery & charging | 4.2 | 2.4 |
Which one is for you?
Oppo A31, if you care about…
- Battery Capacity
- 4,230 mAh
- against 3,000 mAh
- RAM Capacity
- 6 GB
- against 4 GB
- Maximum Storage Capacity
- 128 GB
- against 64 GB
- Display Diagonal
- 6.5″
- against 6.1″
LG Q9, if you care about…
- Storage Type
- UFS 2.0
- against eMMC 5.1
- Display Pixel Density
- 564 ppi
- against 270 ppi
- Weight
- 159 g
- against 180 g
- Body Thickness
- 7.9 mm
- against 8.3 mm
Specification comparison
Performance
| Specification | A31 | Q9 |
|---|---|---|
| Processor Model | MediaTek Helio P35 | Qualcomm Snapdragon 821 |
| Processor Process Size | 12 nm Best value | 14 nm |
| Graphics GPU | PowerVR GE8320 | Qualcomm Adreno 530 |
| Storage Type | eMMC 5.1 | UFS 2.0 Best value |
| Maximum CPU Clock | 2.3 GHz Best value | 2.15 GHz |
| Maximum Storage Capacity | 128 GB Best value | 64 GB |
| AnTuTu Score | 86,352 | — |
| CPU Description | Octa-core processor with four Cortex-A53 cores at 2.3 GHz and four Cortex-A53 cores at 1.8 GHz. | Quad-core (2×2.15 GHz Kryo and 2×1.6 GHz Kryo) |
| Processor Type | Octa-Core | Quad-Core |
| 64-Bit Processor | Yes | Yes |
| RAM Capacity | 6 GB Best value | 4 GB |
| Expandable Storage | Yes | Yes |
| AnTuTu version | v7 | — |
| Maximum memory card | — | 1 TB |
Design
| Specification | A31 | Q9 |
|---|---|---|
| Body Colors | White, Black, Green | Red, Black, Blue |
| Body Thickness | 8.3 mm | 7.9 mm Best value |
| Body Width | 75.5 mm | 71.9 mm |
| Body Height | 163.9 mm | 153.2 mm |
| Weight | 180 g | 159 g Best value |
| Usable Surface | 82.4 % | 82.6 % Best value |
| Body Materials | Glass, Plastic | — |
| Resistance Features | — | IP68, MIL-STD-810G |
| Waterproof Depth | — | 1.5 m |
| Unfolded thickness | — | 7.9 mm |
Battery
| Specification | A31 | Q9 |
|---|---|---|
| Battery Capacity | 4,230 mAh Best value | 3,000 mAh |
| Battery Type | Li-Polymer | Li-Ion |
| Fast Charge Power | — | 18 W |
| Battery Features | Non-Removable | Non-Removable, Fast Charging, Battery Level Indicator, Rechargeable |
Display
| Specification | A31 | Q9 |
|---|---|---|
| Display Aspect Ratio | 20:9 | 19.5:9 |
| Display Technology | IPS LCD | IPS LCD |
| Peak Display Brightness | 480 nits | — |
| Display Diagonal | 6.5″ Best value | 6.1″ |
| Display Horizontal Resolution | 720 px | 1,440 px Best value |
| Display Vertical Resolution | 1,600 px | 3,120 px Best value |
| Display Pixel Density | 270 ppi | 564 ppi Best value |
| Display Features | Gorilla Glass 3, IPS LCD, Water Drop Notch, Capacitive Touch, Multi-Touch, Frameless | HDR10, Capacitive Touch |
Sensors
| Specification | A31 | Q9 |
|---|---|---|
| Fingerprint Sensor Placement | Rear | Rear |
Sensor
| Specification | A31 | Q9 |
|---|---|---|
| Sensor Features | Fingerprint Sensor, Accelerometer, Gyroscope, Proximity Sensor, Compass, Gravity Sensor, Light Sensor | Fingerprint Sensor, Accelerometer, Gyroscope, Compass, Proximity Sensor |
Software
| Specification | A31 | Q9 |
|---|---|---|
| Operating System | Android 9 | Android 8.1 |
| OS Family | Android | Android |
| OS Version | 9 Best value | 8 |
| Google Services | Yes | — |
Connectivity
| Specification | A31 | Q9 |
|---|---|---|
| SIM Configurations | Dual Nano-SIM, Dual SIM Dual Standby | Single Nano-SIM, Dual Nano-SIM |
| Cellular Bands | 2G GSM 850, 2G GSM 900, 2G GSM 1800, 2G GSM 1900, 3G UMTS B850, 3G UMTS B900, 3G UMTS 2100, 4G LTE B1, 4G LTE B3, 4G LTE B5, 4G LTE B7, 4G LTE B8, 4G LTE B20, LTE B28, 4G LTE B28A, 4G LTE B28B, 4G LTE B38, 4G LTE B40, 4G LTE B41 | 2G GSM 850, 2G GSM 900, 2G GSM 1800, 2G GSM 1900, 3G UMTS B850, 3G UMTS B900, 3G UMTS 1900, 3G UMTS 2100, 4G LTE B1, 4G LTE B3, 4G LTE B5, 4G LTE B7, 4G LTE B8, LTE B28, 4G LTE B38 |
| Cellular Technologies | GSM, HSPA, LTE | GSM, HSPA, LTE |
| Wi-Fi Standards | Wi-Fi 802.11a/b/g/n/ac, Wi-Fi 802.11 b/g/n | Wi-Fi 802.11a/b/g/n/ac, Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac) |
| Wi-Fi Features | Dual Band, Wi-Fi Hotspot, Wi-Fi Direct, Wi-Fi Display | Dual Band, Wi-Fi Direct, DLNA |
| Bluetooth Version | Bluetooth 5.0 | Bluetooth 5.0 |
| Bluetooth Profiles | A2DP, LE | A2DP, LE |
| Navigation Systems | GPS, A-GPS, GLONASS, BeiDou, Galileo Best value | GPS, GLONASS, BeiDou |
| Connectivity Features | 3.5 mm Audio Jack, FM Radio, Computer Sync, OTA Sync, Tethering, VoLTE, USB Charging, USB Host, USB Mass Storage, USB OTG, microUSB | 3.5 mm Audio Jack, NFC, FM Radio, USB Type-C, USB OTG, DLNA |
| USB Version | USB 2.0 | USB 3.1 Best value |
| Max. download speed | — | 600 Mbps |
| Max. upload speed | — | 150 Mbps |
Audio
| Specification | A31 | Q9 |
|---|---|---|
| Microphone Count | — | 2 |
| Audio Features | A2DP, LE, HID, Loudspeaker | A2DP, LE, Loudspeaker, 32-bit/192 kHz Audio |
Technical
| Specification | A31 | Q9 |
|---|---|---|
| Model numbers | CPH2015, CPH2073, CPH2081, CPH2029, CPH2031 | LM-Q925S, LM-Q925L, LM-Q925K |
